Hello, all bike mate, bicycle computer. This is wireless with a little tiny. Teeny solar panel can't see that very well uh. This came from aldi.

I think yes, aldi um i bought this about a year ago. I think so. I think the first thing to do is to check this solar panel. I can't see that solar panel very well.

Can you let's see if i can get it up? No i've got a big torch, i'll put the big torch on and i'll put it on. The solar panel - oh yes, and that's - turned on the display because some of these solar panels on things like the little keyring flashlights they're fake, that's flashing, dude d-e-u-t. What does that mean? Dude? I don't know what that means, but certainly this solar panel appears to be genuine now there are no batteries in this because the batteries are in the back. Here there are two lithium cells.

One goes in the transmitter which goes down by this, the hub of your wheel and there's a magnet which just um triggers the transmitter every time the wheel goes around once and the other one of course goes in this unit up here. But let's open this up and have a look at bicycle computer, these blister packs are horrible. Aren't they so i just cut down here with a pair of scissors. So here is the bicycle computer.

Let's peel off this cover! Oh, that's very, very well stuck on and now hopefully you can see the solar panel, which we now know works. Let's just quickly do that again and yes, the uh cpu in this thing boots up still don't know what dude means, but there's some quite complex, um alphanumeric display elements in the center there, some seven segment at the bottom and seven segment at the top. The big one at the top, i guess, would be for speed, um. Okay, let's get the batteries in to both the transmitter and the computer section and see what it does interesting, a cr2016 for which way round.

Is it uh plus to the top goes in the computer and a cr2032 goes in the transmitter? That's curious right. I now know what dute is it's deutsch, so german english set kilometers i've got to go through the manual a bit. I think so that was kilometers and miles. This is setting the diameter of your bicycle wheel.

Well, we'll go with that. This is setting the odo we'll go with naught. That's setting service, oh the service intervals. Oh, i don't want to bother with that naught set kilograms.

I'll have to check the manual. Oh, i think that's the weight of the bike, because it does things like works out, how many calories you've burnt and it needs to know the weight of the bike. You've got pounds, but we don't really use pounds here so i'll set that to kilograms. Uh 65 will do oh.

Why can't i set that uh co2 per kilogram yeah, whatever i'll, use the default values? Ah - and here we are zero miles per hour now - i've got the um battery in the sensor. So if i periodically pulse the magnet onto here, we should get a miles per hour reading and we're not right, there's an arrow on here. So maybe i need to move this past the arrow in that direction. Oh there, we are we're going five miles an hour six miles in there.

Let's go a bit faster, 10 miles an hour yeah that works, and now let's go through these functions. We've got clock at the bottom: uh trip distance ride time, average speed 6.7 max speed. I got up to 12 miles an hour there odometer temperature in degrees celsius. Oh, can we press set on that? No and back to the clock - and in fact there are 23 functions, which is a lot of functions, including things like fat burn.

So, that's why i need to know the weight of the bike uh calorie counter, so there's sort of look up tables to convert between calories and watts, and all that sort of thing i suppose uh also - can display co2 emissions reduction in comparison to driving a car. Well, all of that stuff is fine and dandy, but we want to look at how it works. We want to see. What's inside this transmitter module, don't we now i've had a couple of goes at getting that off and it doesn't like come off.

I think it's glued yes, this does appear to be glued and it's making some nice cracking noises. As i dig this out. I think that's come out and that could be glued back in. Oh, that's interesting! That's inductive! I was thinking hall effect, but that's actually got a coil on a ferrite.

That's really unexpected, but wait. That's the antenna. That's not inductively! Reading the magnet movements, no up there, there's a reed switch and, of course, it's broken because it's made of glass. So yes, this has been destructive, but yeah i mean i was listening for a read, switch click, but i didn't hear anything: let's get this out because it's not going to work anymore.

Okay, closer look: read, switch soldered to the top of the board a couple of wires coming off here, there's a transistor there, presumably to pulse current through this antenna. Um there's a chip here, eight pins, but it looks like only four of them are soldered down onto pads. These are just sort of not soldered, so they're only using half this chip interesting, i wonder what uh chip it is. Well, it's a chip with absolutely no markings on it at all.

So i can't tell you what that is. I'm afraid. I didn't really want to break this, but it's broken now, so i might as well complete the job. I'm gon na break that solar panel next and then the display it's coming off, but i think it's welded closed.

Oh, it's making some horrible cracking noises! Well, when i was digging the screwdriver in to try and get the rear cover off, i destroyed a whole bunch of components down this edge. So does it still work um? Yes, it does, but it doesn't appear to boot. Oh no, there it is dude. So it's deutsch now, if i can get to the switch, but without blocking the solar panel, it's difficult, oh and it's rebooted yeah.

I think this has been destroyed. English set yeah, so it still works, but i broke it now. This rattles i'll put that by the microphone and um. I noticed actually that when it was operating, if you tip it, then it would go from standby, which is just showing the clock to operating, and i was thinking a mems chip, but i actually think now.

That's a little ball tilt switch, which is as effective. I suppose so that's the thing which wakes it up from sleep. That's an eight pin chip with no markings on it whatsoever. That's a blob chip, again no markings.

There is an inductor here. Uh! Would that be power supply? I suppose it must be power supply really, but then that's gon na gobble the juice from that battery. Isn't it there are six tiny little screws in here, so i suppose i might as well take them out. There are four wires here.

Two reds and two blacks: now two of them will go to the solar panel and i got a feeling this had a backlight. I think it was in that list of functions, but it was extremely dim and you could barely see it, i'm having trouble finding a screwdriver small enough to get these very tiny screws out i'll keep looking there. We are they're out. I don't feel good about this.

Video really because i don't like breaking stuff that works and i've got a bicycle, so i could have used this bicycle computer. Don't ride it much these days because well, i'm old uh! So there we are there's the back thing. Yes, there's a back illumination! You can see that two wires go to this back illuminator plate, there's the lcd with the zebra strips they go on to these pads on the board and there's the solar panel. So that's it.

Does it still work? Oh, what's that lull with the spanner? Oh! That's not looking not looking very good at all. Is it i'll put those screws back in so anyway? That's what's inside 499 bike computer, which does still work if i kind of hold the case bits together. Oh, i don't like breaking stuff cheerio.